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Finding the Third Proportional to 5,520 and 11,886

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Solution

The third proportional to 5,520 and 11,886 is: 25,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,520 : 11,886 = 11,886 : x
  2. Step 2: Convert to fraction form
    5,520/11,886 = 11,886/x
  3. Step 3: Cross multiply
    5,520x = 11,886 × 11,886
  4. Step 4: Simplify right side
    5,520x = 141,276,996
  5. Step 5: Solve for x
    x = 141,276,996/5,520
  6. Step 6: Final answer
    x = 25,593.66

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.